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Finding the Fourth Proportional to 6,999.89, 10,500.40 and 2,319.71

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Solution

The fourth proportional to 6,999.89, 10,500.40 and 2,319.71 is: 3,479.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.89 : 10,500.40 = 2,319.71 : x
  2. Step 2: Convert to fraction form
    6,999.89/10,500.40 = 2,319.71/x
  3. Step 3: Cross multiply
    6,999.89x = 10,500.40 × 2,319.71
  4. Step 4: Simplify right side
    6,999.89x = 24,357,882.88
  5. Step 5: Solve for x
    x = 24,357,882.88/6,999.89
  6. Step 6: Final answer
    x = 3,479.75

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